技术中心

三种中高温工质热力性质分析【英文篇名】 Analysis on thermodynamic performances of three middle and high temperature refrigerants 【作者中文名】 张亚立; 张吉礼; 孙德兴; 【作者英文名】 By Zhang Yali; Zhang Jili and Sun DexingChina Architecture Design Beijing; China; 【作者单位】 中国建筑设计研究院; 哈尔滨工业大学; 【文献出处】 暖通空调, Hv 热力学评价指标; 热泵; 【英文关键词】 middle and high temperature refrigerant; thermodynamic evaluating index; heat pump; 【摘要】 简要分析了中高温工质R123,R142b和R134a的化学性质,用热力学指标综合评价了3种工质的性能。评价结果表明,R134a适用于中低温热泵机组,R142b适用于供热温度较高的小型热泵装置,R123适用于中高温热泵机组,且供热温度可以达到80 ℃。 【英文摘要】 Briefly analyses the chemical characteristics of R123, R142b and R134a. Synthetically evaluates their performance using thermodynamic indices. The result indicates that R134a suits for heat pump units with middle and low temperature, R142b for small heat pump units with slightly high supply temperature and R123 for heat pump units with middle and high temperature up to 80 ℃.